From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Reference sheet listing the Greek alphabet.
| Identifier | ExFiles\Box 33\1\ Scan003 | |
| Date | 28th January 1919 | |
| X.1775 28.1.19. GREEK ALPHABET. alpha α beta β gamma γ delta δ epsilon Є zeta ʒ eta η theta θ iota ι kappa K lambda λ mu μ nu ν xi ξ omicron o pi π rho ρ sigma σ tau T upsilon υ phi φ chi χ psi ψ omega ω R.{Sir Henry Royce} R.{Sir Henry Royce} 235A (500 L) (S.D. 408. 26-4-17.) Bm. 2/136/13. | ||